use ctrl-j/ctrl-k to move between parent nodes

README.md

@@ -50,6 +50,8 @@ $ tson -url http://gorilla/likes/json
 | /      | search nodes                   |
 | ?      | show helps                     |
 | space  | expand/collaspe children nodes |
+| ctrl-j | move to next parent node       |
+| ctrk-k | move to next previous node     |
 | ctrl-c | exit tson                      |
 
 ### help

go.mod

@@ -4,6 +4,7 @@ go 1.13
 
 require (
 	github.com/gdamore/tcell v1.3.0
+	github.com/gofrs/uuid v3.2.0+incompatible
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/rivo/tview v0.0.0-20190324182152-8a9e26fab0ff
 	github.com/rivo/uniseg v0.1.0 // indirect

go.sum

@@ -4,6 +4,8 @@ github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdk
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
 github.com/gdamore/tcell v1.3.0 h1:r35w0JBADPZCVQijYebl6YMWWtHRqVEGt7kL2eBADRM=
 github.com/gdamore/tcell v1.3.0/go.mod h1:Hjvr+Ofd+gLglo7RYKxxnzCBmev3BzsS67MebKS4zMM=
+github.com/gofrs/uuid v3.2.0+incompatible h1:y12jRkkFxsd7GpqdSZ+/KCs/fJbqpEXSGd4+jfEaewE=
+github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/lucasb-eyer/go-colorful v1.0.2 h1:mCMFu6PgSozg9tDNMMK3g18oJBX7oYGrC09mS6CXfO4=
 github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
 github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=

gui/navi.go

@@ -22,8 +22,9 @@ var (
 	moveBottom  = fmt.Sprintf(RedColor, "G", "	move bottom")
 	pageDown    = fmt.Sprintf(RedColor, "ctrl-b", "page down")
 	pageUp      = fmt.Sprintf(RedColor, "ctrl-f", "page up")
+	stopApp     = fmt.Sprintf(RedColor, "ctrl-c", "stop tson")
 	defaultNavi = strings.Join([]string{moveDown, moveUp, moveLeft,
-		moveRight, moveTop, moveBottom, pageDown, pageUp}, "\n")
+		moveRight, moveTop, moveBottom, pageDown, pageUp, stopApp}, "\n")
 )
 
 // tree keybinding
@@ -39,7 +40,12 @@ var (
 	clearChildrenNodes = fmt.Sprintf(RedColor, "d", "	clear children nodes")
 	editNodeValue      = fmt.Sprintf(RedColor, "Enter", "edit current node")
 	searchNodes        = fmt.Sprintf(RedColor, "/", "	search nodes")
-	treeNavi           = strings.Join([]string{hideNode, collaspeAllNode, expandNode, expandAllNode, readFile, saveFile, addNewNode, addNewValue, clearChildrenNodes, editNodeValue, searchNodes}, "\n")
+	toggleExpandNodes  = fmt.Sprintf(RedColor, "space", "	expand/collaspe nodes")
+	moveNextParentNode = fmt.Sprintf(RedColor, "ctrl-j", "move to next parent node")
+	movePreParentNode  = fmt.Sprintf(RedColor, "ctrl-k", "move to previous parent node")
+	treeNavi           = strings.Join([]string{hideNode, collaspeAllNode, expandNode, expandAllNode,
+		readFile, saveFile, addNewNode, addNewValue, clearChildrenNodes, editNodeValue, searchNodes,
+		moveNextParentNode, movePreParentNode}, "\n")
 )
 
 type Navi struct {
@@ -54,7 +60,7 @@ func NewNavi() *Navi {
 }
 
 func (n *Navi) UpdateView() {
-	navi := strings.Join([]string{defaultNavi, treeNavi}, "\n")
+	navi := strings.Join([]string{"", defaultNavi, "", treeNavi}, "\n")
 	n.SetText(navi)
 }
 

gui/tree.go

@@ -8,9 +8,15 @@ import (
 	"strings"
 
 	"github.com/gdamore/tcell"
+	"github.com/gofrs/uuid"
 	"github.com/rivo/tview"
 )
 
+const (
+	moveToNext int = iota + 1
+	moveToPre
+)
+
 type Tree struct {
 	*tview.TreeView
 	OriginRoot *tview.TreeNode
@@ -48,12 +54,13 @@ func (t *Tree) AddNode(node interface{}) []*tview.TreeNode {
 				SetChildren(t.AddNode(v))
 			r := reflect.ValueOf(v)
 
+			id := uuid.Must(uuid.NewV4()).String()
 			if r.Kind() == reflect.Slice {
-				newNode.SetReference(Reference{JSONType: Array})
+				newNode.SetReference(Reference{ID: id, JSONType: Array})
 			} else if r.Kind() == reflect.Map {
-				newNode.SetReference(Reference{JSONType: Object})
+				newNode.SetReference(Reference{ID: id, JSONType: Object})
 			} else {
-				newNode.SetReference(Reference{JSONType: Key})
+				newNode.SetReference(Reference{ID: id, JSONType: Key})
 			}
 
 			log.Printf("key:%v value:%v value_kind:%v", k, v, newNode.GetReference())
@@ -61,12 +68,13 @@ func (t *Tree) AddNode(node interface{}) []*tview.TreeNode {
 		}
 	case []interface{}:
 		for _, v := range node {
+			id := uuid.Must(uuid.NewV4()).String()
 			switch n := v.(type) {
 			case map[string]interface{}:
 				r := reflect.ValueOf(n)
 				if r.Kind() != reflect.Slice {
 					objectNode := tview.NewTreeNode("{object}").
-						SetChildren(t.AddNode(v)).SetReference(Reference{JSONType: Object})
+						SetChildren(t.AddNode(v)).SetReference(Reference{ID: id, JSONType: Object})
 
 					log.Printf("value:%v value_kind:%v", v, "object")
 					nodes = append(nodes, objectNode)
@@ -95,8 +103,9 @@ func (t *Tree) AddNode(node interface{}) []*tview.TreeNode {
 		}
 
 		log.Printf("value_type:%v", valueType)
+		id := uuid.Must(uuid.NewV4()).String()
 		nodes = append(nodes, t.NewNodeWithLiteral(node).
-			SetReference(Reference{JSONType: Value, ValueType: valueType}))
+			SetReference(Reference{ID: id, JSONType: Value, ValueType: valueType}))
 	}
 	return nodes
 }
@@ -156,10 +165,42 @@ func (t *Tree) SetKeybindings(g *Gui) {
 			current.SetExpanded(!current.IsExpanded())
 		}
 
+		switch event.Key() {
+		case tcell.KeyCtrlJ:
+			t.moveParent(moveToNext)
+		case tcell.KeyCtrlK:
+			t.moveParent(moveToPre)
+		}
+
 		return event
 	})
 }
 
+func (t *Tree) moveParent(movement int) {
+	current := t.GetCurrentNode()
+	t.GetRoot().Walk(func(node, parent *tview.TreeNode) bool {
+		// TODO set id to compare id
+		if parent != nil {
+			children := parent.GetChildren()
+			for i, n := range children {
+				if n.GetReference().(Reference).ID == current.GetReference().(Reference).ID {
+					if movement == moveToNext {
+						if i < len(children)-1 {
+							t.SetCurrentNode(children[i+1])
+						}
+					} else if movement == moveToPre {
+						if i > 0 {
+							t.SetCurrentNode(children[i-1])
+						}
+					}
+				}
+			}
+		}
+
+		return true
+	})
+}
+
 func parseValueType(text string) ValueType {
 	// if sorround with `"` set string type
 	if strings.HasPrefix(text, `"`) && strings.HasSuffix(text, `"`) {

gui/type.go

@@ -44,6 +44,7 @@ func (v ValueType) String() string {
 }
 
 type Reference struct {
+	ID        string
 	JSONType  JSONType
 	ValueType ValueType
 }